23V, 8A, Synchronous Buck Converter with 2-Bit VID Control and Low Power Mode

The RT6323B/RT6323BH is a high-efficiency synchronous buck converter with a pseudo-constant switching frequency 600kHz, delivering up to 8A continuous and 10A peak output current. The RT6323B/RT6323BH operates from 3V to 23V input voltage. It supports 2-bit VID and low power mode (LPM#) to dynamically change the output voltage to satisfy VDD_MEM applications.The RT6323B/RT6323BH adopts Advanced Constant On-Time (ACOT^®) control architecture that provides ultra-fast transient response and further reduces the number of external components. In steady states, the ACOT^® operates at a nearly constant switching frequency across line, load, and output voltage ranges and simplifies the EMI filter design.The RT6323B/RT6323BH operates in diode emulation mode (DEM) under the light load conditions, offering optimal light load efficiency.The RT6323B/RT6323BH provides a Power-Good indicator for easy system sequence control. It also integrated full protection features, including the cycle-by-cycle current limit, OVP, UVP, input UVLO, and OTP.All functions are integrated in a VQFN-13L 2x3 (FC) package. The recommended junction temperature range is from -40°C to 125°C.